公开(公告)号：US20240315712A1

公开(公告)日：2024-09-26

申请号：US18692118

申请日：2022-09-22

Applicant: MicroVention, Inc.

Inventor： Joseph Rye ,  Tao Lin ,  Xiang Simon Han ,  Sarri Alsunna ,  Hussain S. Rangwala ,  Hari Narayanan Raman

IPC: A61B17/22 ,  A61B17/00

CPC classification number: A61B17/22 ,  A61B2017/00292 ,  A61B2017/22079 ,  A61B2217/005

Abstract: Aspiration thrombectomy devices and methods wherein an aspiration cycle includes a positive displacement segment to facilitate clot removal, a pump cartridge to facilitate tube management and an aspiration device for providing a vacuum surge. Disclosed herein is an aspiration thrombectomy system which relies on air or inert gas, rather than liquid, to provide both static and dynamic suction level profiles for safely and efficiently retrieving and removing from the body a thrombus. In one example embodiment, two or more pressure sources may be configured to apply two or more suction levels to an aspiration catheter. Valves may connect conduits between the pressure sources and the aspiration catheter, with the valves being selectively opened or closed to control which pressure level is applied to the catheter.